drm/amdgpu: add me/mec configurations for navi14

Add navi14 to appropriate cases.
Signed-off-by: NXiaojie Yuan <xiaojie.yuan@amd.com>
Reviewed-by: NHawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c

@@ -1164,6 +1164,7 @@ static int gfx_v10_0_sw_init(void *handle)
 
 	switch (adev->asic_type) {
 	case CHIP_NAVI10:
+	case CHIP_NAVI14:
 		adev->gfx.me.num_me = 1;
 		adev->gfx.me.num_pipe_per_me = 2;
 		adev->gfx.me.num_queue_per_pipe = 1;